(Bloomberg) -- Blackstone Inc. is in conversations with lenders about the future of a Los Angeles office complex once valued at $583 million, after having written down its entire stake in the property, according to a person with knowledge of the matter.Most Read from BloombergIsrael Latest: S&P Cuts Israel’s Rating Outlook to NegativeBig Tech Earnings Whipsaw QQQ in Late Trading: Markets WrapNobody Wants Mutual Funds NowAn Oil Giant Quietly Ditched the World’s Biggest Carbon Capture PlantChina O